139 entries under stubborn topic. ×
| hard-nosed(adjective, mean, clear, strong, hard) | |
| stalwart(adjective, calm, strong, sound, tough) | |
| steely(adjective, strong, hard, tough, solid) | |
| immobile(adjective, calm, quiet, strong, secure) | |
| immutable(adjective, calm, strong, hard, secure) | |
| pertinacious(adjective, strong, tough, determined, steady) | |
| set in stone(expression, adjective, idiom, calm, set) | |
| single-minded(adjective, tough, solid, intense, deliberate) | |
| strong-willed(adjective, strong, tough, intense, deliberate) | |
| implacable(adjective, mean, strong, hard, tough) | |
| indomitable(adjective, strong, hard, tough, determined) | |
| unshaken(adjective, set, clear, solid, cold) | |
| purposeful(adjective, strong, tough, determined, serious) | |
| strong-minded(adjective, certain, determined, significant, resolution) | |
| bound(adjective, set, strong, tough, intense) | |
| hanging tough(expression, adjective, mean, hard, determined) | |
| indurate(verb, adjective, close, set, fix) | |
| intractable(adjective, tough, persistent, rigid, inflexible) | |
| mulish(adjective, mean, strong, hard, tough) | |
| rigorous(adjective, strong, hard, complete, tough) |
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| APA | Smart Define. (2016). firm thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/firm/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, firm thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>. |
| MLA | Smart Define. "firm thesaurus" 31 March 2016. Web. 28 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms> |